Modulation Type: [F] Angle-modulated, straight FM

Modulation Nature: [9] Composite, one or more digital channel, one or more analog

Information Type: [W] Multiple Formats of Data Transmitted

The Emissions Designator 4M19F9W signifies a wireless radio which transfers data over a modulated wave using Composite, one or more digital channel, one or more analog signal. This signal transmits at a 4.19 MHz [4M19] maximum bandwidth . bandwith does not indicate frequency of the signal. Emissions Designators describe the type of signal only.